1、

Orthogonal experiment design was used to optimize experimental factors: solvent amount, raw material ratio, temperature and reaction time.

利用正交实验设计确定了加成缩合反应实施的最佳实验条件,优化了合成反应的溶剂用量、原料配比、反应温度及反应时间参数。

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2、

The optimal condition: mass ratio of starch and acrylamide 1:2, initiator quality 0.3g, reation temperature 50 ℃ and reaction time 3h was obtained through orthogonal experiments with the target of efficiency of graft, soluble capability and molecular weight of the grafting chain.

通过正交实验,以接枝效率、溶解性能和接枝链上聚丙烯酰胺分子量为指标得出了最佳条件为:淀粉与丙烯酰胺质量比为1:2,引发剂质量为0.3g,反应温度为50℃,反应时间为3h。

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4、

Optimum conditions determined from single factor test and response surface analysis were as follows: concentrations of β-cyclodextrin and water were 3.6% ( W/ W) and 38% ( W/ W) respectively, reaction temperature 44 ℃, reaction time 60 min.

结合单因素试验和响应面分析确定优化的工艺参数为:β-环糊精用量3.6%(W/W),加水量38%(W/W),反应温度44℃,反应时间60min。

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5、

Reaction time task response ( either switch or repeat), negative emotions, significantly longer than the reaction under the cognitive conditions.

消极情绪下的任务反应(无论转换还是重复),的反应时,显著长于认知条件下的反应时。

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6、

Through the study on the synthetic process, the optimum technological conditions were obtained, which were as follows: the molar ratio of cyclohexanone to sodium perborate tetrahydrate was 1 ∶ 1.5, the reaction temperature was 80 ℃ and the reaction time was 3 h.

通过对ε己内酯合成工艺条件的研究,得到了最佳合成工艺条件:环己酮与过硼酸钠四水化合物摩尔比为1∶1.5,反应时间3h,反应温度80℃。

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7、

In this process, under the mild reaction condition, the three wastes can not be produced with easy manipulation and after-treatment, and short reaction time.

合成反应条件温和,反应时间较短,操作简便,后处理过程简单,无三废产生。

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8、

Obtained alkylate reaction technical parameter: reaction time of alkylate of rapeseed oil phospholipid was 2 hours. after 2 hours the reaction almost cease;

确定烷基化反应的工艺参数:菜油磷脂的烷基化反应所用的时间为2小时,在2小时之后反应基本停止;

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9、

In this article, we established a kinetic model of quartz cementation, in which temperature history, reaction time, detrital mineralogy, grain size and grain coating abundance were all considered.

该文综合考虑温度、时间、石英颗粒含量、粒径和粘土包壳对自生石英形成的影响,建立了石英胶结作用的化学动力学模型。

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10、

It is shown that temperature level only reflects on reaction time needed, not do any to phase composed.

结果表明,温度高低对合成反应的影响只体现在反应所需时间上,对产物物相组成并无影响。

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11、

The experimental results show that, at definite temperature, the loss quantity of the river sand of 4 different grain-diameters increases and the reaction rate decreases with the increase of the reaction time;

实验结果表明:在一定温度下,随着反应时间的延长,4种不同粒径河砂的损失量增大而反应速率减小;

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12、

It was shown that the optimum molar ratio between hydrobromic acid and pentaerythrite was 2.5 to 1 for 6 to 8h of optimum reaction time and reflux temperature as optimum reaction temperature.

实验确定了氢溴酸与季戊四醇的最佳摩尔比为2.5∶1,最佳反应时间为6~8h,最佳反应温度为回流温度。

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13、

Optimization of ISSR-PCR System for Lucuma nervosa by Using Orthogonal Design Through the study on the added amount of NaOH, reaction time and temperature, the optimum production process conditions were determined.

蛋黄果ISSR-PCR反应最佳体系的构建(简报)通过对氢氧化钠的加入量、应时间、应温度等生产条件的研究,得出了最佳生产工艺条件。

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14、

We focus on reaction time, reaction temperature, ratio of V_ ( acid)/ V_ ( water) on distribution of particle size and media grain size.

我们重点考察了反应时间,反应温度,V酸/V水对晶种的粒度分布和平均粒径的影响。

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15、

We optimized this method by changing the reaction time, temperature, ratio of reactants and other factors, to find a high yield, short reaction time, simple operation synthesis.

本论文探讨了四溴酸酐的合成方法,通过改变反应时间、温度、反应物的配比等因素对其进行了优化,找到了一种产率高、反应时间短、操作简单的合成工艺。

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16、

The factors affecting the polymerization such as reaction temperature and reaction time were investigated.

同时,研究了反应温度及反应时间对聚合反应的影响。

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17、

The process conditions are studied for the synthesis of o-nitro-p-cresol using p-cresol and nitric acid in dichloromethane. The effects of reaction time, temperature, degree of dispersion and concentration of nitric acid were optimized. The yield is up to 82.3%.

考察了用对甲酚和硝酸在二氯甲烷中合成邻硝基对甲酚的工艺条件,对影响反应的因素,如分散度、反应时间、反应温度、硝酸浓度等进行了优选,产率达到了82.3%。

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18、

Effects of proportion between water and bone glue, reaction temperature and reaction time on grafting product were studied.

探讨了水胶比、碱用量、碱解温度、反应时间等因素对接枝共聚产物的影响。

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19、

The effects on the yield by reaction agent relative ratio, reaction temperature, reaction time hadbeen also discussed.

同时详细讨论了反应物配比、反应温度及时间等因素对收率的影响。

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20、

Influence of reaction temperature, reaction time and catalyst dosage on the yield of hexanoic acid was investigated.

分别考察了反应温度、反应时间和催化剂物质的量对己酸收率的影响。

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